Replace <iframe> → <fencedframe> in the Accessibility section

[Nicolapps]

Description

This PR fixes the documentation of <fencedframe> by removing incorrect references to the <iframe> element which should be references to <fencedframe> instead.

Motivation

The documentation of <fencedframe> contains leftovers copied from the documentation of <iframe> in its Accessibility section, which makes it confusing to read.

Additional details

[github-actions]

Preview URLs

• /en-US/docs/Web/HTML/Element/fencedframe

Flaws (23)

URL: /en-US/docs/Web/HTML/Element/fencedframe
Title: <fencedframe>: The Fenced Frame element
Flaw count: 23

• macros:
  • Wrong xref macro used (consider changing which macro you use). Error processing path /en-US/docs/Learn/HTML
  • Wrong xref macro used (consider changing which macro you use). Error processing path /en-US/docs/Learn/Getting_started_with_the_web/HTML_basics
  • Wrong xref macro used (consider changing which macro you use). Error processing path /en-US/docs/Learn/HTML/Introduction_to_HTML
  • Wrong xref macro used (consider changing which macro you use). Error processing path /en-US/docs/Learn/HTML/Introduction_to_HTML/Getting_started
  • Wrong xref macro used (consider changing which macro you use). Error processing path /en-US/docs/Learn/HTML/Introduction_to_HTML/The_head_metadata_in_HTML
  • and 18 more flaws omitted

[estelle]

Thank you.
Congratulations on your first merged MDN content PR.
Welcome to the team!